Volunteer T3G Editor
I just noticed this post.That's odd. So from that it sounds like the tune processes speed data from a speed output source. So it's not actual speedo, but a "tool".
I think my bike updated the odometer without calculating my sprocket change. Like it racks up miles faster.
Does the odometer go by actual or what it thinks? I guess if it's programmed for factory settings, does it go by number of rotations?
So bigger tires means you'll be going faster. Does the odometer rack up faster then? Does it get factored into miles until empty? Shower lower mpg?
@TermLimits - Can you answer this for me? Overthinking.
The truck calculates everything by what it thinks, exactly how you described.
For me, 37” tires means I’m going about 84 mph when my truck says I’m doing 70 mph. The mpg is also inaccurate like this. But the numbers displayed and the actual numbers are relative so you can kind of convert them subconsciously. There’s also some conversion tools here: https://tiresize.com/speedometer-calibration/
Here’s a silly one: When my low gas light comes on, it says I have about 110 miles until empty. I think a stock truck puts that light on around 30 miles to empty.